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I've been running Autolite AR3933 plugs for years with no problems. Just bought new ones and noticed they are now made in Mexico. This is the differance I've noticed while gaping them. The electrode is shaped differant. Will this make a differance or cause me issues? The one on the left is the new one? Thanks Scott
Here they are side by side. But the new one is on the right now.
Looks like they saved a .010 of an inch of metal by going straighter across instead of the more graceful arc :rolleyes:
Less metal. Just another way to cut cost, IMHO.
Think it will effect performance or how long they last?
mucho mas rapido con "nuevo sparko plugos"
i think anything will last for the maybe 50 hrs that get put on in season
I just put those in race boat today and yes they are diffrent. Hard to gap what is a better alternative?
NGK..is the best plug there is ..no doubt !!!!!!!!!!!!!!
I dont see the word AUTO in any boat ..lol